JSTests/test262/test/language/expressions/strict-does-not-equals/S11.9.5_A4.1_T1.js

// Copyright 2009 the Sputnik authors.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
info: If x or y is NaN, return true
es5id: 11.9.5_A4.1_T1
description: x is NaN
---*/

//CHECK#1
if (!(Number.NaN !== true)) {
  $ERROR('#1: NaN !== true');
}

//CHECK#2
if (!(Number.NaN !== 1)) {
  $ERROR('#2: NaN !== 1');
}

//CHECK#3
if (!(Number.NaN !== Number.NaN)) {
  $ERROR('#3: NaN !== NaN');
}

//CHECK#4
if (!(Number.NaN !== Number.POSITIVE_INFINITY)) {
  $ERROR('#4: NaN !== +Infinity');
}

//CHECK#5
if (!(Number.NaN !== Number.NEGATIVE_INFINITY)) {
  $ERROR('#5: NaN !== -Infinity');
}

//CHECK#6
if (!(Number.NaN !== Number.MAX_VALUE)) {
  $ERROR('#6: NaN !== Number.MAX_VALUE');
}

//CHECK#7
if (!(Number.NaN !== Number.MIN_VALUE)) {
  $ERROR('#7: NaN !== Number.MIN_VALUE');
}

//CHECK#8
if (!(Number.NaN !== "string")) {
  $ERROR('#8: NaN !== "string"');
}

//CHECK#9
if (!(Number.NaN !== new Object())) {
  $ERROR('#9: NaN !== new Object()');
}